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Several questions extracted from Baidu Club. They are all things that need to be paid attention to in SEO practice, and they all exist as facts. Many people should already know this, and it’s no surprise that they’ve seen it. This is a small part of it.
How quickly does Baidu respond to 301 redirects? When an old URL is 301 redirected, Baidu responds very slowly.
For content migration, the recommended approach is to permanently redirect the old URL 301 to the new URL corresponding to the content. This will transfer the accumulated weight of the old URL to the new URL.
In order to avoid various unstable factors, our current processing strategy is relatively conservative, and the new and old URLs will coexist for a long time. I recently realized that this approach is not appropriate, and I am researching a faster way to deal with it.
Does Baidu currently support the nofollow attribute of links? For example rel='external nofollow'
Baidu Spider now supports nofollow tags. Links with nofollow tags will ignore most of their functions. Nofollow is mainly used in places that are not controlled by the webmaster, such as user comments. The voting in these places is not the will of the webmaster. It is appropriate to tell the search engine not to vote for him.
If gzip compression is enabled on the server, will it affect spider crawling and inclusion volume?
If the server turns on gzip compression, it will not affect spider crawling and will be crawled in a compressed manner. And it can also save the network traffic of the site.
After querying using site syntax, if the first one is not the homepage of the website, does it mean that the website has been demoted by Baidu?
The search results of site syntax query are similar to random ordering in most cases, which cannot explain any problem except that these web pages have been included. (Note: After a website is demoted, it is common for the homepage to not be at the first place...)
How long is the Baidu data update cycle?
If it is an entry index page that changes frequently, I believe the change cycle will be very short; but for a relatively stable content page, the cycle will be relatively long. Webmasters can observe the crawling logs of spiders, and the patterns discovered will be more valuable.
Will websites using virtual hosts be implicated and punished because other websites on the same IP or the same server are punished for cheating?
For a mature search engine, the possibility of being so reckless is very small. (Note: This means that although the chance is very small, it is still possible.)
How much impact will it have on Baidu SEO if the site has a CDN?
Almost all large websites are using CDN. Just look at their performance in search engines and you will know that there will be no negative impact.
However, we recommend that webmasters try to choose CDN service providers with mature technology. Some CDN service providers will cause website access to be unstable in certain areas, which may affect Baiduspider's crawling.
~End. The rest will be summarized slowly.
Author's blog: http://liucheng.name/1732/